Stackable Component Bins / Louvre Panel Trays

For hanging on a Louvre hook panel, or simply stacking up in a pile, to sort all your nuts and bolts, bits and bobs, odds and ends in.

I don't currently have access to such a panel, so the clip on this tub is a generous estimation, and there is a matching hook that can be easily stuck all over a scrap bit of plywood by using some countersunk screws, to turn it into such a panel.
If anyone does have access to one and would like to share some dimensions for the hooks on them, then I could redesign this for a better fit.

The current design is only two parts for simplicity's sake, and on its side to keep stress in-plane and remove overhangs, but I might consider making one in more flat parts.
Suggest some alternate sizes and I'll make them, otherwise go fiddle around with the IGES part files.